Big Block Chevy 29.00cc Dome 4.3100 Bore 3.760 stroke 6.135 rod, 10.5 to 1 with 109cc Closed Chamber head (CP Bullets BBC5114-060)
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|
Make |
Chevrolet |
|
Engine Type |
Big Block |
|
Part Number |
BBC5114-060 |
|
Bore (in) |
4.31 |
|
Stroke (in) |
3.76 |
|
Rod Length (in) |
6.135 |
|
Comp Height |
1.775 |
|
Head Type |
26 C.C. |
|
Head CC |
109 |
|
Dome / Dish Height |
0.275 |
|
Dom/Dish CC |
29 |
|
Compression Ratio |
10.6 |
|
Pin |
.990 x 2.750 |
|
Ring Thickness |
1/16 x 1/16 x 3/16 in. |
|
VR Depth |
-0.25 |
|
Cubic Inch |
427 |
|
Piston Weight |
690 |
|
Style |
Dome |
|
Valve Reliefs |
1 VR with Slant |
|
Gas Port |
No |
| Product Name | Big Block Chevy 29.00cc Dome 4.3100 Bore 3.760 stroke 6.135 rod, 10.5 to 1 with 109cc Closed Chamber head (CP Bullets BBC5114-060) |
|---|---|
| Brands | CP Carrillo |
| Engine | Big Block Chev |
| Make | GM |
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What information do I need to match these pistons to my engine?
You need the engine code, bore size, stroke, rod length, pin diameter and target compression ratio. These determine the correct piston compression height and crown design.
How should ring gaps be set for these pistons?
Ring gaps must be set by your engine builder based on fuel type, boost level and the intended rpm range. Forced-induction engines usually require larger gaps.
Are forged pistons suitable for street engines?
Yes. Forged pistons handle detonation and high cylinder pressure better than cast units. Your builder should set the piston-to-bore clearance to suit your application.
What is the recommended compression ratio for the BBC5114-060 pistons?
The BBC5114-060 pistons are designed to achieve a compression ratio of approximately 10.6:1 when used with a 109cc closed chamber head. However, actual compression may vary based on factors such as head gasket thickness and combustion chamber modifications.
What are the specific machining requirements for the BBC5114-060 pistons?
When installing the BBC5114-060 pistons, ensure that the bore clearance is set correctly according to your engine's specifications. Additionally, check that the ring gaps are appropriately set for your application, as this will affect performance and reliability.
What is the weight of the BBC5114-060 pistons and how does it affect engine performance?
The BBC5114-060 pistons weigh 690 grams each. This weight can impact engine balance and performance, particularly at high RPMs. It's advisable to consider the overall rotating assembly weight and balance it accordingly during your build.
Can I use these pistons with a different stroke or rod length?
The BBC5114-060 pistons are specifically designed for a 3.76-inch stroke and 6.135-inch rod length. Using them with different stroke or rod lengths may lead to improper fitment and performance issues, so it's crucial to match these specifications closely.
What type of valve reliefs do the BBC5114-060 pistons have?
The BBC5114-060 pistons feature one valve relief with a slant design. This is intended to accommodate typical valve sizes and configurations in Big Block Chevy applications, but it's essential to verify clearance with your specific cylinder head setup.
